我按照snlu130设计的板子,我只是供上电,然后0344的CD管脚就会变成低电平,指示的LED就会亮,请问这是什么原因呢?
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我按照snlu130设计的板子,我只是供上电,然后0344的CD管脚就会变成低电平,指示的LED就会亮,请问这是什么原因呢?